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  1. #13
    Senior Member Nor_Cal_Drifter's Avatar
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    Re: Nimbus Hatchery Salmon Restoration

    Quote Originally Posted by Mark1 View Post
    And some year soon, the Hatchery will build that new piped Salmon ladder with a small area using a plastic see thru type window for people to see the Salmon, from the basin back to the Hatchery, no weir needed anymore. No specific dates yet.
    “No specific dates yet.” Same thing they’ve been saying for the last 8 years. Interesting how this project was their excuse for closing the basin to all fishing. I don’t think it is even fully funded yet. Talk about cart before the horse. Smh.
    "Many men go fishing all of their lives without knowing that it is not fish they are after." - Henry David Thoreau

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  3. #12
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    Re: Nimbus Hatchery Salmon Restoration

    Quote Originally Posted by SilverKing View Post
    If they want to keep the river healthy 1st order of business should be removing the homeless camps on that river.

    In the Sunday Bee..1,300 volunteers on Saturday picked up 48,000 lbs of trash and recycles, up from last year, according to the director of the American River Parkway Foundation. Last year they picked up 20,000 lbs of trash. Probably most trash from the camps but they went all up the river. Hope none of them got stuck with needles. The e-coli problem near the mouth is out of hand.

    The Bee also had an article on the restoration project at Sailors Bar. It said 14,000 tons of old dredged rock and stones is being used to re-establishing a crucial spawning area for native Salmon and Steelhead for their grueling trek from the ocean to the American starting in October. In 2009, when Sailors Bar spawning area habitat was last restored using the same method, 122 redds were spotted in the area afterward. Last year, there were no redds along the riverbed, with most gravel washed away, according to conservationists. Development of Folsom/Nimbus dams have prevented sediment and debris that would otherwise settle along the river and replace old gravel are blocked. Also blocking Salmon reaching some prehistoric spawning grounds according to the director of the Water Forum, a coalition of enviromental/Gov/business groups.

    They are trying to recreate a so called new spawning and rearing area. Including a new side channel through the bar that's parallel to the river, creating a protected area for juvenile fish to grow. Shallow, slower moving water will allow insects and vegatation for feeding, while allowing the fish to hide from larger predators, basically a nursery. They'll need cover and some food to grow large enough to make it out to the ocean. In the last 10 years they've done the Nimbus basin, Sacramento bar and River bend. Over the next 15 years they'll do El Manto, Sunrise and Ancil according to this Forum group. And some year soon, the Hatchery will build that new piped Salmon ladder with a small area using a plastic see thru type window for people to see the Salmon, from the basin back to the Hatchery, no weir needed anymore. No specific dates yet.
    Last edited by Mark1; 09-25-2019 at 04:14 AM.

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  5. #11
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    Re: Nimbus Hatchery Salmon Restoration

    If they want to keep the river healthy 1st order of business should be removing the homeless camps on that river.

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  7. #10
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    Re: Nimbus Hatchery Salmon Restoration

    Quote Originally Posted by redneckpunk View Post
    It will likely end up like the last “spawning beds” they put in above the hatchery a couple years ago....gone in less than 6 months. That year we had decent rainfall amounts and as is usually the case with our mismanaged water system they opened all the gates increasing the flows to 40k cfs and blew away all the new beds.


    Sent from my iPad using Tapatalk
    Just like Fishwrong2 explained, the rocks are dispersed through the river. They’re not meant to stay in one area. This will keep the river healthy. More fish survive when there’s habitat for their food.


    Sent from my iPhone using Tapatalk

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  9. #9
    Senior Member dsa2780's Avatar
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    Re: Nimbus Hatchery Salmon Restoration

    These boys basically dropped a ton of rocks in the river and then bumped the flows back to. They’ve been in the same spot for over a week now. What’s up with the project being standstill?

  10. #8
    Patron Saint of Forum Moderators redneckpunk's Avatar
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    Re: Nimbus Hatchery Salmon Restoration

    It will likely end up like the last “spawning beds” they put in above the hatchery a couple years ago....gone in less than 6 months. That year we had decent rainfall amounts and as is usually the case with our mismanaged water system they opened all the gates increasing the flows to 40k cfs and blew away all the new beds.


    Sent from my iPad using Tapatalk

  11. #7
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    Re: Nimbus Hatchery Salmon Restoration

    Lol that oughtta offset all that spawning habitat lost above the DAM.

  12. #6
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    Re: Nimbus Hatchery Salmon Restoration

    Quote Originally Posted by Shot-Gun View Post
    They've been doing this for years around Redding
    Have the returns improved?

  13. #5
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    Re: Nimbus Hatchery Salmon Restoration

    They've been doing this for years around Redding
    Fisher of men first, fisher of fish second.

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  15. #4
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    Re: Nimbus Hatchery Salmon Restoration

    It does help. A river has a natural flow of rock, gravel and sand that travels down stream called bedload. It naturally segregates itself by flow condition with larger heavier rock settling out first gradually decreasing in size as it travels down river. As flows rise and fall it replenishes itself. When a dam goes in, it cuts off the bedload flow and the river scours down to bedrock reducing the spawning gravel they need for incubating eggs. The fish will spawn even in crappy gravel, but the egg survival is less successful. Looks like the project is supposed to be done by the end of the month which should be before any spawning starts. There’s a bunch of information on-line including the studies to back up the science behind it.

    One of the problems is there is only so much area available, so there is a limit to it’s effectiveness. The lower American only has less than 10 miles of spawning area compared to 100 plus it had before the dams.

    The hatchery plans favor in-river spawning over hatchery supplementation to offset the lost habitat. I fundamentally agree with the priority, but unfortunately it’s got limited impact. More of an every little bit helps type of solution. My opinion anyway.

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